Saint-Sornin

Charente-Maritime · CC du Bassin de Marennes · INSEE 17406

A school and somewhere to eat or drink, but no food shop.

Few services 29.9/100 · confidence: high· Better served than 65 % of the {n|commune|communes} of a similar size.

Identity

Saint-Sornin (INSEE 17406) is in Charente-Maritime (17), part of CC du Bassin de Marennes. Population 415 (2023). ^[1]

INSEE density class: Rural à habitat dispersé (level 6). ^[2]

Data vintages: INSEE BPE 2025 · INSEE SIRENE 2026-09 · INSEE census (RP) 2023 · INSEE COG 2026 · INSEE density grid 2026.

Permanent link: https://vivantrural.com/en/fr/17406-saint-sornin

Vitality score

Vitality score 29.9/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 65 % of the 18,004 communes of a similar size.

Compare this with communes of a similar size. The score measures how well a place is served relative to its own size band, and larger communes score higher as a rule — so it reads meaningfully against another village, and misleadingly against a town.

Measured but not scored in this model: Market. See the methodology for why.

Component	Value (0–1)	Weight	Contribution
Daily food	0	25	0
Social	0.32	20	6.32
Education	0.63	10	6.32
Health	0	10	0
Public & culture	0.32	5	1.58
Population trend	0.79	10	7.89
Housing mix	0.66	5	3.31

Services

What is here, at a glance

Food 0 of 6

Eating out 0 of 1

Cafés and bars 1 of 1

Schools 1 of 3

Health 0 of 4

Public services 0 of 1

Culture 1 of 2

Sport 0 of 2

Everyday services 0 of 3

Lodging 1 of 2

One square per service type, shaded by how many: none, one, a few, five or more. A blank square means none was counted — the sources do not distinguish “none here” from “not counted”.

A school and somewhere to eat or drink, but no food shop. ^[3,4]

1 × Café / bar (CAFE - BAR). ^[4]

1 × Primary school (élémentaire) (ECOLE ELEMENTAIRE PRIVEE HORS CONTRAT L'ECOLE DES EXPLORATEURS). ^[3]

1 × Library (BIBLIOTHÈQUE MUNICIPALE). ^[3]

1 × Campsite (LES ETANGS MINA). ^[3,4]

Not counted, because the business register records them as closed: 1 × Campsite.

Not found in the commune: Bakery (boulangerie), Butcher (boucherie), Grocery (épicerie / supérette), Supermarket, Restaurant, Nursery school (maternelle), GP (médecin généraliste), Pharmacy, Post office / agence postale. ^[3,4]

All 25 service types, with per-source counts

Type	Count	Names	Sources
Bakery (boulangerie)	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Butcher (boucherie)	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Grocery (épicerie / supérette)	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Supermarket	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Cheese shop (fromagerie)	0		INSEE SIRENE 0 [4]
Fishmonger	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Restaurant	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Café / bar	1	CAFE - BAR	INSEE SIRENE 1 [4]
Nursery school (maternelle)	0		INSEE BPE 0 [3]
Primary school (élémentaire)	1	ECOLE ELEMENTAIRE PRIVEE HORS CONTRAT L'ECOLE DES EXPLORATEURS	INSEE BPE 1 [3]
Collège	0		INSEE BPE 0 [3]
GP (médecin généraliste)	0		INSEE BPE 0 [3]
Pharmacy	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Nurse	0		INSEE BPE 0 [3]
Dentist	0		INSEE BPE 0 [3]
Post office / agence postale	0		INSEE BPE 0 [3]
Library	1	BIBLIOTHÈQUE MUNICIPALE	INSEE BPE 1 [3]
Cinema	0		INSEE BPE 0 [3]
Gym / sports hall	0		INSEE BPE 0 [3]
Swimming pool	0		INSEE BPE 0 [3]
Bank	0		INSEE BPE 0 [3]
Hairdresser	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Fuel station	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Hotel	0		INSEE BPE 0 / INSEE SIRENE 0 [3,4]
Campsite	1	LES ETANGS MINA	INSEE BPE 1 / INSEE SIRENE 2 [3,4]

Market and village life

Market day: unknown — nothing found in the datasets or on the commune website.

Trajectory

1968: 316 2023: 415 axis from zero, so the slope compares with any other commune

Population 322 (2012) → 415 (2023): 28.9 % over 10 years. ^[5,1]

Population 322 (1990) → 415 (2023): 28.9 % over 30 years. ^[6,1]

Dwellings (2023): 260, of which 16.9 % second homes and 7.3 % vacant. ^[7]

Access and surroundings

Which way the everyday services lie

In the commune Primary school Bakery — 2.5 km SWGP — 2.5 km SWFood shop — 4.4 km SPharmacy — 5.3 km SE Straight-line, from the mairie, in the direction given. Services in the same town share a spoke. Distance is not travel time: a pass or an estuary can double it.

Bakery (Nieulle-sur-Seudre): 2.5 km to the south-west (straight line). ^[8]

Food shop (Le Gua): 4.4 km to the south (straight line). ^[9]

GP (Nieulle-sur-Seudre): 2.5 km to the south-west (straight line). ^[8]

Pharmacy (Le Gua): 5.3 km to the south-east (straight line). ^[9]

Primary school (Saint-Sornin): 0.1 km to the north-east (straight line). ^[10]

Climate

Where this sits nationally

Days at or above 30 °C 16.5

Days at or below 0 °C 21.8

Muggy days a summer 8

Each track runs from the 5th to the 95th percentile of the 34,141 communes with that measurement; the tick is the median. A value beyond either end sits at the end and is marked ▸.

An average of 17 days a year at or above 30 °C and 22 days at or below 0 °C, over 29 complete years in 1995–2024. ^[11]

Measured at the ST AGNANT weather station, 13.4 km away at 18 m; the village itself is at 17 m. ^[11]

Muggy days — a dew point at or above 18 °C — average 8 days a summer. ^[11]

Humidity measured at ST AGNANT, 13.4 km away at 18 m, over 30 summers. ^[11]

An average of 899 mm of rain a year, spread over 127 days — about 7.1 mm on a day it rains. ^[11]

Rainfall measured at SAUJON, 11 km away at 7 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[11]

Uncertainties

No specific uncertainties flagged.

References

INSEE census (RP) 2023 — 17406/2023
INSEE density grid 2026
INSEE BPE 2025
INSEE SIRENE 2026-09
INSEE census (RP) 2023 — 17406/2012
INSEE census (RP) 2023 — 17406/1990
INSEE census (RP) 2023 — 17406/logement/2023
INSEE BPE 2025 — 17265
INSEE BPE 2025 — 17185
INSEE BPE 2025 — 17406
Météo-France daily climatology 1995-2024

Villages like this one

Matched on size, density, second homes and which everyday shops and services are present — not on the score, so a village of the same kind that is doing better or worse shows up rather than being hidden.

Commune	Dept	Distance	Population	Score	Band	Climate vs here
Thurey	71	481 km E	423	29	Few services	Warmer summers and colder winters.summer 44 % · winter 70 %
Saint-Laurent-sur-Oust	56	248 km NW	396	34.5	Few services	Cooler summers and colder winters.Summers feel drier.summer 79 % · winter 76 % · humidity 50 %
Privezac	12	291 km SE	350	32	Few services	Warmer summers and colder winters.Summers feel drier.summer 82 % · winter 23 % · humidity 57 %
Grâce-Uzel	22	308 km NW	423	27.5	Few services	Cooler summers, similar winters.Summers feel drier.summer 64 % · winter 100 % · humidity 50 %
Saint-Cyr-en-Pail	53	302 km N	500	27.5	Few services	Cooler summers and colder winters.Summers feel drier.summer 74 % · winter 77 % · humidity 50 %
Rivarennes	36	206 km NE	482	25.7	Few services	Similar summers, colder winters.Summers feel drier.summer 87 % · winter 74 % · humidity 57 %

Order by distance instead

Commune	Dept	Distance	Population	Score	Band	Climate vs here
Rivarennes	36	206 km NE	482	25.7	Few services	Similar summers, colder winters.Summers feel drier.summer 87 % · winter 74 % · humidity 57 %
Saint-Laurent-sur-Oust	56	248 km NW	396	34.5	Few services	Cooler summers and colder winters.Summers feel drier.summer 79 % · winter 76 % · humidity 50 %
Privezac	12	291 km SE	350	32	Few services	Warmer summers and colder winters.Summers feel drier.summer 82 % · winter 23 % · humidity 57 %
Saint-Cyr-en-Pail	53	302 km N	500	27.5	Few services	Cooler summers and colder winters.Summers feel drier.summer 74 % · winter 77 % · humidity 50 %
Grâce-Uzel	22	308 km NW	423	27.5	Few services	Cooler summers, similar winters.Summers feel drier.summer 64 % · winter 100 % · humidity 50 %
Thurey	71	481 km E	423	29	Few services	Warmer summers and colder winters.summer 44 % · winter 70 %

Sort and compare these on the full list →

…and in much the same climate

The same match on size and services, narrowed to communes whose summers, winters and summer humidity are all close to Saint-Sornin's. All three are required, so this section is absent for the 11.8 % of communes with no humidity station near enough to measure: two temperature axes alone cannot tell a muggy coast from a dry one.

Commune	Dept	Distance	Population	Score	Band	Climate vs here
Carlipa	11	368 km SE	332	33.3	Few services	Much the same temperatures.Summers feel about as humid.summer 100 % · winter 91 % · humidity 86 %
Cenne-Monestiés	11	365 km SE	413	34.3	Few services	Much the same temperatures.Summers feel about as humid.summer 95 % · winter 91 % · humidity 86 %
Guitinières	17	51 km SE	479	24.2	Few services	Much the same temperatures.Summers feel about as humid.summer 87 % · winter 91 % · humidity 86 %
Saint-Froult	17	18 km N	400	37.9	Few services	Much the same temperatures.Summers feel about as humid.summer 100 % · winter 100 % · humidity 100 %
Champagnac	17	60 km SE	488	27.4	Few services	Much the same temperatures.Summers feel about as humid.summer 87 % · winter 91 % · humidity 86 %
Écurat	17	24 km E	438	26.7	Few services	Much the same temperatures.Summers feel about as humid.summer 87 % · winter 92 % · humidity 86 %

Elsewhere

Commune website · Wikipedia (en) ·Wikipedia (fr) · INSEE dossier complet · OpenStreetMap · Web search · Map

Permanent link: https://vivantrural.com/en/fr/17406-saint-sornin